T/S Parameters for M3 8

[ApertureXTC]

Can anyone tell me if the T/S parameters on the DC Audio website for the m3 8 (http://dcsoundlab.com/m3-8) for the dual 4 ohm or dual 2 ohm version? ...and before someone says it, YES it does matter D4 vs D2 and YES some of the parameters WILL be different between the 2 versions. 

The T/S information is not in Term-Lab for the m3 8's and I'm trying to design a box for 4 Dual 4 Ohm m3 8's with very strict requirements to go in a crew cab GMC.

[SnowDrifter]

You might send them a note. The Re would seem to indicate D4, but the BL listed appears for D2 - unless the motor force is weaker than I'm expecting